The Bernardo KBM 63 fixed-column drill is the heavy model in the KBM range for heavy mechanics, with drilling capacity up to Ø 63 mm, steel drilling capacity up to Ø 63 mm, and threading up to M48 with automatic reversal. Technical specifications: Morse taper MT 5 spindle, 9 spindle speeds 40-570 rpm (stepped), automatic spindle feed with 6 ranges 0.1-0.78 mm/rev, 5.5 kW motor with 800 Nm torque, 30,000 N feed force. Cast iron table 660 × 555 mm with 22 mm T-slots, 300 mm table lift, 375 mm spindle-column distance, max 870 mm spindle-table distance. Cast iron structure, weight 2,500 kg, machine dimensions 900 × 1,300 × 2,850 mm. Distributed in Italy by Krollit as official Bernardo distributor since 2007.
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Steel drilling capacity: Ø 63 mm
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Threading capacity: M48 with automatic reversal
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Morse taper spindle: MT 5
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Spindle speeds: 9 speeds 40-570 rpm
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Spindle torque: 800 Nm
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Feed force: 30,000 N
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Spindle stroke: 250 mm
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Cast iron table: 660 × 555 mm with 22 mm T-slots
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Table lift: 300 mm
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Motor: 5.5 kW at 400V three-phase
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Weight: 2,500 kg
Who uses the KBM 63 and for what
The Bernardo KBM 63 is a heavy industrial fixed-column drill for high-volume mechanical production and heavy mechanics. Drilling capacity Ø 63 mm and threading up to M48: the largest model in the KBM range, sized for significant industrial workpieces. 5.5 kW motor with 800 Nm torque (5 times the torque of KBM 25/32 models) and 30,000 N feed force (3 times the force of light models): the machine develops power for large diameter drilling in heavy steels, cast iron, special materials, where smaller machines would fail. Heavy cast iron structure, weight 2,500 kg: machine dimensions 900 × 1,300 × 2,850 mm. The MT 5 taper supports large diameter tools (over 50 mm): for drilling diameters Ø 50-63 mm, the KBM 63 model is correctly sized; for drilling diameters Ø 63-80 mm, the KBM 80 model with MT 6 taper is required. Typical areas of use: heavy mechanics (forgings, castings, thick sheets), shipbuilding for the construction and maintenance of large components, aerospace and railway industries for the production of precision mechanical components, maintenance workshops for heavy industrial plants.
Its place in the Bernardo range
The Bernardo drill range is organized into 3 main categories: bench drills (DMT 20, BM, TB) for craft workshops with occasional use; fixed-column drills (KBM 25/32/40/50/63/80) for industrial workshops with high-capacity mechanical production; gear-driven drills (GB 30 TV) for precision workshops requiring superior concentricity. The KBM 63 and KBM 80 are the heavy models in the KBM range, sharing a heavy frame (table 660×555 mm, weight 2,500 kg), 5.5 kW motor, and 800 Nm torque. Differences: the KBM 63 has a drilling capacity of Ø 63 mm with MT 5 taper and M48 threading; the KBM 80 has a drilling capacity of Ø 80 mm with MT 6 taper and M56 threading. For workshops with typical tools Ø 50-63 mm, the KBM 63 is the correct choice; for workshops with tools up to Ø 80 mm, the KBM 80 with MT 6 taper is necessary (MT 6 tools are significantly more expensive and less common). The heavy KBM models are the top of the Bernardo drill range: for higher capacities, industrial radial drills or dedicated CNC machining centers are required.
Krollit logistics and support
Bernardo shipping in 5-9 working days (7 days to the South). Due to its high weight, a crane or heavy pallet truck is required for unloading from the transport vehicle and installation. Internal workshop handling with a forklift or manual pallet truck (at least 1,500 kg capacity). HSS drill bits in MT tapers, milling chucks, threading devices, LED lamps, coolant pumps, original Bernardo spare parts (belts, gears, seals, motors) available from stock with 3-5 working days shipping. Customer support available in Italian.
Who is the KBM 63 for?
| Profile |
Compatibility |
Reason |
| Hobbyist or workshop with occasional use |
Not recommended |
Industrial machine weighing 2,500 kg with required 400V three-phase line. For occasional use, DMT 20 bench drills or BM/TB column drills are correctly sized. |
| Heavy mechanics (forgings, castings, thick sheets) |
Recommended |
Ø 63 mm capacity with 5.5 kW motor and 800 Nm torque: sized for heavy drilling on industrial steels. 30,000 N feed force. 660×555 mm table. |
| Naval, railway, aerospace industry |
Recommended |
Stability of the heavy cast iron structure (2,500 kg) for precision drilling on large components. Spindle speed 40-570 rpm (low range) for maximum torque on large diameter tools. |
Not suitable for: workshops without an industrial 400V three-phase line with adequate cable cross-section; environments without space for machine dimensions (900 × 1,300 × 2,850 mm); high-precision drilling (for concentricity ≤ 0.02 mm, the GB 30 TV or CNC drills are correctly sized); occasional hobby use (the machine is oversized, consider DMT 20 or BM/TB bench models).
Machining capacities
| Specification |
Value |
| Steel drilling capacity |
Ø 63 mm |
| Max threading capacity |
M48 |
| Morse taper spindle |
MT 5 |
Speeds and feeds
| Specification |
Value |
| Spindle speeds |
9 speeds 40-570 rpm |
| Spindle torque |
800 Nm |
| Spindle stroke |
250 mm |
| Drill head travel |
260 mm |
| Spindle feed |
6 ranges 0.1-0.78 mm/rev |
| Feed force |
30,000 N |
Table and working dimensions
| Specification |
Value |
| Table dimensions |
660 × 555 mm |
| T-slots |
22 mm |
| Table lift |
300 mm |
| Spindle-column distance |
375 mm |
| Max spindle-table distance |
870 mm |
Motor and power supply
| Specification |
Value |
| Motor power |
5.5 kW |
| Voltage |
400V three-phase / 50 Hz |
Dimensions and weight
| Specification |
Value |
| Machine dimensions (L × W × H) |
900 × 1,300 × 2,850 mm |
| Weight |
2,500 kg |
Compliance
| Specification |
Value |
| Marking |
CE |
| Directive |
Machinery 2006/42/CE |
Standard equipment
- Bernardo KBM 63 drill
- Integrated cooling device
- Threading device with automatic reversal
- Right/left rotation (R/L)
- Integrated LED work light
- Morse taper sleeve
- Height-adjustable CE compliant guard
- Set of service tools
- User manual in Italian
Frequently asked questions
What is the difference between MT 5 taper and other tapers?
The Morse taper MT 5 is sized for tools with a diameter up to Ø 63 mm. For tools with a larger diameter, a larger Morse taper is required (MT 4 for Ø 32-40 mm, MT 5 for Ø 40-63 mm, MT 6 for Ø 63-80 mm).
The Morse taper is an international standard that defines the taper for coupling between the spindle and the tool: the taper is designed for self-locking during rotation. HSS drill bits, milling cutters, reamers, and tapered reducing sleeves are available in all MT tapers. For B16 or B18 tools (cylindrical with screw clamping), a drill chuck with the machine's MT shank is required: professional self-tightening chucks are recommended for quick and safe tool changes.
How does the automatic spindle feed work?
The automatic feed lowers the spindle at a constant, adjustable speed depending on the material, eliminating the operator's physical effort on the manual lever. The 9 feed ranges (0.056-1.8 mm/rev) cover different materials: 0.056-0.1 mm/rev for hard steels, 0.1-0.3 mm/rev for alloy steels, 0.3-0.7 mm/rev for mild steels, 0.7-1.8 mm/rev for aluminum and light alloys.
Correct feed is crucial for: drill bit life (excessive feed causes breakage), hole quality (reduced feed causes slow machining and high burr), machine productivity (optimal feed significantly reduces drilling times). For series production, automatic feed allows for the execution of multiple identical holes without manual intervention: a decisive feature for productivity.
Does M48 threading require a specific device?
Yes, and it is included in the standard equipment. The threading device with automatic reversal allows M48 threading to be performed without the need for manual spindle stop: the direction of rotation automatically reverses when the set depth is reached.
Standard threading procedure: mount the tap in the MT tap holder, adjust the depth stop, position the workpiece on the table with threading lubricant oil. The operator starts the machine, the spindle rotates forward cutting the thread, and when the depth is reached, the direction automatically reverses, retracting the tap. Specific threading oil for steel (e.g., CutCool, Tapping Fluid) is recommended for thread quality and tap life.
Can I perform precision drilling with this drill?
For standard precision (concentricity 0.05-0.1 mm), yes. For higher precision (concentricity ≤ 0.02 mm), gear-driven drills (GB 30 TV) or CNC drills with precision spindles are correctly sized.
KBM fixed-column drills have belt drive with typical industrial standard concentricity. For higher precision applications (precision reaming, drilling for H7 fits), the GB 30 TV with hardened and ground gear transmission offers concentricity ≤ 0.02 mm. For extremely precise industrial applications (concentricity below 0.01 mm), dedicated boring machines or CNC machining centers are required.
What power supply does this machine need?
400V three-phase line with adequate cable cross-section for the 5.5 kW motor: typically 4 mm² up to 30 meters, 6 mm² over 30 meters. Dedicated 25A circuit breaker.
For workshops without a three-phase line, electrical adaptation is necessary (typical cost €500-€1,500 for a new three-phase meter + wiring + circuit breaker). For workshops with a three-phase line but undersized cables, the cost is limited to dedicated wiring (€200-€500). Pre-purchase verification is recommended: contact a qualified electrician to check the availability of power on the existing meter and the cross-sections of the current cables.
